公开(公告)号：US10176432B2

公开(公告)日：2019-01-08

申请号：US15451783

申请日：2017-03-07

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Baleegh Abdo ,  Jay Gambetta ,  Jared B. Hertzberg ,  Easwar Magesan

IPC: H03K19/195 ,  H01L29/02 ,  H01L29/06 ,  G02B6/34 ,  H01L39/24 ,  G06F17/11 ,  G06N99/00 ,  H01L39/02 ,  H01L39/22

Abstract: A technique relates to providing a superconducting quantum device. A fixed frequency transmon qubit is provided. A tunable frequency transmon qubit is provided. The fixed frequency transmon qubit is coupled to the tunable frequency transmon qubit to form a single qubit.

公开(公告)号：US20230205622A1

公开(公告)日：2023-06-29

申请号：US18154075

申请日：2023-01-13

Applicant: International Business Machines Corporation

Inventor： Andrew W. Cross ,  Christopher Chamberland ,  Jay M. Gambetta ,  Jared B. Hertzberg ,  Theodore J. Yoder ,  Guanyu Zhu

IPC: G06F11/10 ,  G06N10/00

CPC classification number: G06F11/10 ,  G06N10/00 ,  H03M13/1575

Abstract: A quantum computer includes a quantum processor that includes a first plurality of qubits arranged in a hexagonal lattice pattern such that each is substantially located at a hexagon apex, and a second plurality of qubits each arranged substantially along a hexagon edge. Each of the first plurality of qubits is coupled to three nearest-neighbor qubits of the second plurality of qubits, and each of the second plurality of qubits is coupled to two nearest-neighbor qubits of the first plurality of qubits. Each of the second plurality of qubits is a control qubit at a control frequency. Each of the first plurality of qubits is a target qubit at one of a first target frequency or a second target frequency. The quantum computer includes an error correction device configured to operate on the hexagonal lattice pattern of the plurality of qubits so as to detect and correct data errors.

公开(公告)号：US10692831B1

公开(公告)日：2020-06-23

申请号：US16281770

申请日：2019-02-21

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Nicholas T. Bronn ,  Jared B. Hertzberg ,  Eric P. Lewandowski ,  Jae-woong Nah

IPC: H01L23/00 ,  G06N10/00 ,  H01L23/66 ,  H01L21/66 ,  H01L23/498

Abstract: According to an embodiment of the present invention, a method of producing a quantum computer chip includes performing a frequency measurement on a qubit chip bonded to a test interposer chip for qubits on the qubit chip at an operating temperature of the qubit chip. The method further includes pulling the qubit chip apart from the test interposer chip after performing the frequency measurement, and modifying a frequency of a subset of qubits after pulling the qubit chip apart from the test interposer chip. The method further includes bonding the qubit chip to a device interposer chip after modifying the frequency of the subset of qubits.

公开(公告)号：US20190051810A1

公开(公告)日：2019-02-14

申请号：US16153866

申请日：2018-10-08

Applicant: International Business Machines Corporation

Inventor： Markus Brink ,  Jared B. Hertzberg ,  Sami Rosenblatt

IPC: H01L39/02 ,  H01L27/18 ,  H03H11/02

Abstract: A technique relates to a superconducting chip. Resonant units have resonant frequencies, and the resonant units are configured as superconducting resonators. Josephson junctions are in the resonant units, and one or more of the Josephson junctions have a shorted tunnel barrier.

公开(公告)号：US20190006284A1

公开(公告)日：2019-01-03

申请号：US15598928

申请日：2017-05-18

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Markus Brink ,  Jared B. Hertzberg ,  Sami Rosenblatt

IPC: H01L23/544 ,  H01L39/22 ,  H01L39/04 ,  H01L27/18 ,  G01R33/34 ,  H04L29/06

Abstract: A technique relates to a superconducting chip. Resonant units have resonant frequencies, and the resonant units are configured as superconducting resonators. Josephson junctions are in the resonant units, and one or more of the Josephson junctions have a shorted tunnel barrier.

公开(公告)号：US20240180046A1

公开(公告)日：2024-05-30

申请号：US18431342

申请日：2024-02-02

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Jared B. Hertzberg ,  Jason S. Orcutt ,  Hanhee Paik ,  Sami Rosenblatt ,  Martin O. Sandberg

IPC: H10N60/01 ,  G06N10/00 ,  H10N60/12 ,  H10N60/80

CPC classification number: H10N60/0884 ,  G06N10/00 ,  H10N60/0661 ,  H10N60/0912 ,  H10N60/12 ,  H10N60/805

Abstract: The invention includes methods, and the structures formed, for multi-qubit chips. The methods may include annealing a Josephson junction of a qubit to either increase or decrease the frequency of the qubit. The conditions of the anneal may be based on historical conditions, and may be chosen to tune each qubit to a desired frequency.

公开(公告)号：US10833879B2

公开(公告)日：2020-11-10

申请号：US15813310

申请日：2017-11-15

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Markus Brink ,  Jared B. Hertzberg ,  Sami Rosenblatt

IPC: H04L9/32 ,  G06N10/00 ,  G06F21/44 ,  H01L39/22 ,  H01L39/24 ,  H01L27/18 ,  B82Y10/00

Abstract: A technique relates to a superconducting chip. Resonant units each include a Josephson junction. The resonant units have resonant frequencies whose differences are based on a variation in the Josephson junction. A transmission medium is coupled to the resonant units, and the transmission medium is configured to output a sequence of the resonant frequencies as an identification of the chip.

公开(公告)号：US10833239B2

公开(公告)日：2020-11-10

申请号：US16654069

申请日：2019-10-16

Applicant: International Business Machines Corporation

Inventor： Markus Brink ,  Jared B. Hertzberg ,  Sami Rosenblatt

IPC: H01L39/02 ,  G11C11/44 ,  G11C17/16 ,  G11C17/18 ,  H01L27/18 ,  H01L39/06 ,  H01L39/22 ,  H01L39/24 ,  H03H11/02 ,  G01R33/34 ,  H01L23/544 ,  H01L39/04 ,  H04L29/06 ,  G06N10/00 ,  B82Y10/00

Abstract: A technique relates to a superconducting chip. Resonant units have resonant frequencies, and the resonant units are configured as superconducting resonators. Josephson junctions are in the resonant units, and one or more of the Josephson junctions have a shorted tunnel barrier.

公开(公告)号：US10608157B2

公开(公告)日：2020-03-31

申请号：US15598928

申请日：2017-05-18

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Markus Brink ,  Jared B. Hertzberg ,  Sami Rosenblatt

IPC: H01L39/02 ,  G11C17/18 ,  H01L27/18 ,  H01L39/06 ,  H01L39/22 ,  H01L39/24 ,  H03H11/02 ,  G11C11/44 ,  G11C17/16 ,  G01R33/34 ,  H01L23/544 ,  H01L39/04 ,  H04L29/06 ,  G06N10/00 ,  B82Y10/00

Abstract: A technique relates to a superconducting chip. Resonant units have resonant frequencies, and the resonant units are configured as superconducting resonators. Josephson junctions are in the resonant units, and one or more of the Josephson junctions have a shorted tunnel barrier.

公开(公告)号：US20200052182A1

公开(公告)日：2020-02-13

申请号：US16654069

申请日：2019-10-16

Applicant: International Business Machines Corporation

Inventor： Markus Brink ,  Jared B. Hertzberg ,  Sami Rosenblatt

IPC: H01L39/02 ,  G11C17/18 ,  H01L27/18 ,  H01L39/06 ,  H01L39/22 ,  H01L39/24 ,  H03H11/02 ,  G01R33/34 ,  H01L23/544 ,  H01L39/04 ,  H04L29/06 ,  G11C11/44 ,  G11C17/16

Abstract: A technique relates to a superconducting chip. Resonant units have resonant frequencies, and the resonant units are configured as superconducting resonators. Josephson junctions are in the resonant units, and one or more of the Josephson junctions have a shorted tunnel barrier.